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Finding the Fourth Proportional to 568, 847.54 and 490.24

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Solution

The fourth proportional to 568, 847.54 and 490.24 is: 731.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    568 : 847.54 = 490.24 : x
  2. Step 2: Convert to fraction form
    568/847.54 = 490.24/x
  3. Step 3: Cross multiply
    568x = 847.54 × 490.24
  4. Step 4: Simplify right side
    568x = 415,498.01
  5. Step 5: Solve for x
    x = 415,498.01/568
  6. Step 6: Final answer
    x = 731.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.